body {
    font-family: '微软雅黑', sans-serif;
    background-color: #f0f2f5;
    margin: 0;
    padding: 0;
}

.container {
    width: 400px;
    margin: 80px auto;
    padding: 40px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    font-size: 16px;
    color: #555;
    margin-bottom: 8px;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 10px;
    font-size: 14px;
    box-sizing: border-box;
    border: 1px solid #ccc;
    border-radius: 4px;
}

#strengthMessage {
    margin-top: 8px;
    font-size: 14px;
    color: #f00;
}

button {
    width: 100%;
    padding: 12px;
    background-color: #1890ff;
    border: none;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    border-radius: 4px;
}

button:hover {
    background-color: #40a9ff;
}
